js遍历Table

var length = document.getElementById('envTable').rows.length;
var list = [];
        for (var i = 1; i < length; i++) {
            var key = document.getElementById('envTable').rows[i].cells[0].innerHTML;
            var value = document.getElementById('envTable').rows[i].cells[1].innerHTML;
            list.push({
                key: key,
                value: value
            })
        }
        let data = JSON.stringify(list);